File Type Active Server Page Extended File IconActive Server Page Extended File
File Format Proprietary (Microsoft)
Usage Open manually
Popularity ★ ★ ★ ★ ★  Popular

An ASPX file is an .ASP Web page developed for ASP.NET. It may contain Web scripts written in the VBScript or C# programming languages. Scripts within the page are parsed on the server when accessed by a user. The resulting HTML is included in the page that is sent to the client's Web browser.

ASPX pages may created with Visual Web Developer, which is included with Microsoft's Visual Studio.

Info About Microsoft Visual Studio

Visual Studio is a software development program that contains an integrated development environment or IDE. It can be used to create Windows programs and Web applications. Visual Studio includes a code editor, debugger, a form designer, and several other tools.

Visual C++, Visual C#, Visual Basic, Visual Web Developer, and Team Foundation Server are all included with Visual Studio.

Open With

IconMicrosoft Visual Studio

IconES-Computing EditPlus

IconAdobe Dreamweaver


IconAdobe Dreamweaver

IconAny Web browser


IconAny Web browser

Updated January 7, 2010
Information from the PC File Extensions Reference